1 dnl Process this file with autoconf to produce a configure script.
3 dnl And be careful when changing it! If you must add tests with square
4 dnl brackets, be sure changequote invocations surround it.
6 dnl Copyright (C) 2012-2018 Free Software Foundation, Inc.
8 dnl This file is free software; you can redistribute it and/or modify
9 dnl it under the terms of the GNU General Public License as published by
10 dnl the Free Software Foundation; either version 3 of the License, or
11 dnl (at your option) any later version.
13 dnl This program is distributed in the hope that it will be useful,
14 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
15 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 dnl GNU General Public License for more details.
18 dnl You should have received a copy of the GNU General Public License
19 dnl along with this program; see the file COPYING3. If not see
20 dnl <http://www.gnu.org/licenses/>.
22 dnl v2.5 needed for --bindir et al
24 m4_include([../bfd/version.m4])
25 AC_INIT([gas], BFD_VERSION)
26 AC_CONFIG_SRCDIR(as.h)
28 dnl Autoconf 2.57 will find the aux dir without this. However, unless
29 dnl we specify this explicitly, automake-1.7 will assume that ylwrap is in
30 dnl gas/ instead of gas/../.
39 AC_USE_SYSTEM_EXTENSIONS
43 ACX_PROG_CMP_IGNORE_INITIAL
45 AC_ARG_ENABLE(targets,
46 [ --enable-targets alternative target configurations besides the primary],
47 [case "${enableval}" in
48 yes | "") AC_MSG_ERROR(enable-targets option must specify target names or 'all')
50 no) enable_targets= ;;
51 *) enable_targets=$enableval ;;
55 if grep '^RELEASE=y' ${srcdir}/../bfd/Makefile.am >/dev/null 2>/dev/null ; then
58 AC_ARG_ENABLE(checking,
59 [ --enable-checking enable run-time checks],
60 [case "${enableval}" in
61 no|none) ac_checking= ;;
64 if test x$ac_checking != x ; then
65 AC_DEFINE(ENABLE_CHECKING, 1, [Define if you want run-time sanity checks.])
69 # Decide the default method for compressing debug sections.
70 ac_default_compressed_debug_sections=unset
71 # Provide a configure time option to override our default.
72 AC_ARG_ENABLE(compressed_debug_sections,
73 AS_HELP_STRING([--enable-compressed-debug-sections={all,gas,none}],
74 [compress debug sections by default]),
75 [case ,"${enableval}", in
76 ,yes, | ,all, | *,gas,*) ac_default_compressed_debug_sections=yes ;;
77 ,no, | ,none,) ac_default_compressed_debug_sections=no ;;
78 *) ac_default_compressed_debug_sections=unset ;;
82 # Decide if x86 assembler should generate relax relocations.
83 ac_default_x86_relax_relocations=unset
84 # Provide a configure time option to override our default.
85 AC_ARG_ENABLE(x86_relax_relocations,
86 AS_HELP_STRING([--enable-x86-relax-relocations],
87 [generate x86 relax relocations by default]),
88 [case "${enableval}" in
89 no) ac_default_x86_relax_relocations=0 ;;
92 # Decide if ELF assembler should generate common symbols with the
94 ac_default_elf_stt_common=unset
95 # Provide a configure time option to override our default.
96 AC_ARG_ENABLE(elf_stt_common,
97 AS_HELP_STRING([--enable-elf-stt-common],
98 [generate ELF common symbols with STT_COMMON type by default]),
99 [case "${enableval}" in
100 yes) ac_default_elf_stt_common=1 ;;
107 # Generate a header file
108 AC_CONFIG_HEADERS(config.h:config.in)
110 dnl Option --with-cpu=TYPE allows configure type control of the default
111 dnl cpu type within the assembler. Currently only the ARC target
112 dnl supports this feature, but others may be added in the future.
114 AS_HELP_STRING([--with-cpu=CPU],
115 [default cpu variant is CPU (currently only supported on ARC)]),
116 [AC_DEFINE_UNQUOTED(TARGET_WITH_CPU,
118 [Target specific CPU.])],
122 AH_VERBATIM([00_CONFIG_H_CHECK],
123 [/* Check that config.h is #included before system headers
124 (this works only for glibc, but that should be enough). */
125 #if defined(__GLIBC__) && !defined(__FreeBSD_kernel__) && !defined(__CONFIG_H__)
126 # error config.h must be #included before system headers
128 #define __CONFIG_H__ 1])
130 # If we are on a DOS filesystem, we must use gdb.ini rather than
133 *-*-msdos* | *-*-go32* | *-*-mingw32* | *-*-windows*)
135 AC_CONFIG_FILES(gdb.ini:gdbinit.in)
139 AC_CONFIG_FILES(.gdbinit:gdbinit.in)
144 #We need this for the host. BOUT header is in host order.
149 # Makefile target for installing gas in $(tooldir)/bin.
150 install_tooldir=install-exec-tooldir
154 if test -n "$enable_targets" ; then
155 for t in `echo $enable_targets | sed 's/,/ /g'`; do
156 if test $t = "all"; then
160 result=`$ac_config_sub $t 2>/dev/null`
161 if test -n "$result" ; then
162 canon_targets="$canon_targets $result"
164 # # Permit "all", etc. We don't support it yet though.
165 # canon_targets="$canon_targets $t"
168 GAS_UNIQ(canon_targets)
173 for this_target in $target $canon_targets ; do
176 . ${srcdir}/configure.tgt
178 case ${target_cpu} in
180 AC_DEFINE_UNQUOTED(DEFAULT_CRIS_ARCH, $arch,
181 [Default CRIS architecture.])
185 if test ${this_target} = $target ; then
186 target_cpu_type=${cpu_type}
187 elif test ${target_cpu_type} != ${cpu_type} ; then
191 generic_target=${cpu_type}-${target_vendor}-${target_os}
192 case ${generic_target} in
194 if test ${this_target} = $target; then
195 AC_DEFINE(SCO_ELF, 1, [Define if defaulting to ELF on SCO 5.])
202 AC_DEFINE(STRICTCOFF, 1, [Using strict COFF?])
206 | x86_64-*-solaris2 \
207 | i386-*-solaris2.[[0-9]] \
208 | i386-*-solaris2.1[[01]] \
209 | x86_64-*-solaris2.1[[01]])
210 if test ${this_target} = $target \
211 && test ${ac_default_x86_relax_relocations} = unset; then
212 ac_default_x86_relax_relocations=0
217 AC_MSG_WARN(GAS support for ${generic_target} is preliminary and a work in progress)
226 AC_DEFINE(AIX_WEAK_SUPPORT, 1,
227 [Define if using AIX 5.2 value for C_WEAKEXT.])
230 if test ${this_target} = $target; then
231 AC_DEFINE(TARGET_SOLARIS_COMMENT, 1,
232 [Define if default target is PowerPC Solaris.])
234 if test x${endian} = xbig; then
235 AC_MSG_ERROR(Solaris must be configured little endian)
240 AC_DEFINE(TARGET_SYMBIAN, 1, [Define if target is Symbian OS.])
244 if test ${this_target} = $target ; then
246 if test x${endian} = xbig; then
248 elif test x${endian} = xlittle; then
251 if test x${endian_def} != x; then
252 AC_DEFINE_UNQUOTED(TARGET_BYTES_BIG_ENDIAN, $endian_def,
253 [Define as 1 if big endian.])
257 # Other random stuff.
261 # Set mips_cpu to the name of the default CPU.
262 case ${target_cpu} in
263 mips | mipsbe | mipseb | mipsle | mipsel | mips64 | mips64el)
266 mipsisa32 | mipsisa32el)
269 mipsisa32r2 | mipsisa32r2el)
272 mipsisa32r3 | mipsisa32r3el)
275 mipsisa32r5 | mipsisa32r5el)
278 mipsisa32r6 | mipsisa32r6el)
281 mipsisa64 | mipsisa64el)
284 mipsisa64r2 | mipsisa64r2el)
287 mipsisa64r3 | mipsisa64r3el)
290 mipsisa64r5 | mipsisa64r5el)
293 mipsisa64r6 | mipsisa64r6el)
296 mipstx39 | mipstx39el)
299 mips64vr | mips64vrel)
302 mipsisa32r2* | mipsisa64r2*)
304 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r2//' -e 's/el$//'`
307 mipsisa32r6* | mipsisa64r6*)
309 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..r6//' -e 's/el$//'`
312 mips64* | mipsisa64* | mipsisa32*)
314 mips_cpu=`echo $target_cpu | sed -e 's/[a-z]*..//' -e 's/el$//'`
319 mips_cpu=`echo $target_cpu | sed -e 's/^mips//' -e 's/el$//'`
323 AC_MSG_ERROR($target_cpu isn't a supported MIPS CPU name)
326 # See whether it's appropriate to set E_MIPS_ABI_O32 for o32
327 # binaries. It's a GNU extension that some OSes don't understand.
336 # Decide whether to generate 32-bit or 64-bit code by default.
337 # Used to resolve -march=from-abi when an embedded ABI is selected.
339 mips64*-*-* | mipsisa64*-*-*)
346 # Decide which ABI to target by default.
348 mips64*-linux* | mips-sgi-irix6* | mips64*-freebsd* \
349 | mips64*-kfreebsd*-gnu | mips64*-ps2-elf*)
350 mips_default_abi=N32_ABI
352 mips*-linux* | mips*-freebsd* | mips*-kfreebsd*-gnu)
353 mips_default_abi=O32_ABI
356 mips_default_abi=N64_ABI
359 mips_default_abi=NO_ABI
362 AC_DEFINE_UNQUOTED(MIPS_CPU_STRING_DEFAULT, "$mips_cpu",
363 [Default CPU for MIPS targets. ])
364 AC_DEFINE_UNQUOTED(USE_E_MIPS_ABI_O32, $use_e_mips_abi_o32,
365 [Allow use of E_MIPS_ABI_O32 on MIPS targets. ])
366 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_64BIT, $mips_default_64bit,
367 [Generate 64-bit code by default on MIPS targets. ])
368 AC_DEFINE_UNQUOTED(MIPS_DEFAULT_ABI, $mips_default_abi,
369 [Choose a default ABI for MIPS targets. ])
373 # Do we need the opcodes library?
381 case "${enable_shared}" in
382 yes) shared_opcodes=true ;;
383 *opcodes*) shared_opcodes=true ;;
384 *) shared_opcodes=false ;;
389 # Any other special object files needed ?
393 echo ${extra_objects} | grep -s "bfin-parse.o"
394 if test $? -ne 0 ; then
395 extra_objects="$extra_objects bfin-parse.o"
398 echo ${extra_objects} | grep -s "bfin-lex-wrapper.o"
399 if test $? -ne 0 ; then
400 extra_objects="$extra_objects bfin-lex-wrapper.o"
404 epiphany | fr30 | ip2k | iq2000 | lm32 | m32r | or1k)
415 case ${extra_objects} in
417 *) extra_objects="$extra_objects m68k-parse.o" ;;
426 echo ${extra_objects} | grep -s "itbl-parse.o"
427 if test $? -ne 0 ; then
428 extra_objects="$extra_objects itbl-parse.o"
431 echo ${extra_objects} | grep -s "itbl-lex-wrapper.o"
432 if test $? -ne 0 ; then
433 extra_objects="$extra_objects itbl-lex-wrapper.o"
436 echo ${extra_objects} | grep -s "itbl-ops.o"
437 if test $? -ne 0 ; then
438 extra_objects="$extra_objects itbl-ops.o"
447 # Decide BASELINE, REDUCED_REGS, FPU_DP_EXT, FPU_SP_EXT features
448 # based on arch_name.
449 AC_MSG_CHECKING(for default configuration of --with-arch)
450 if test "x${with_arch}" != x; then
452 v2j | v2s | v2f | v2 | v3m | v3j | v3s | v3f | v3 )
453 AC_DEFINE_UNQUOTED(NDS32_DEFAULT_ARCH_NAME, "$with_arch",
454 [Define value for nds32_arch_name])
457 AC_MSG_ERROR(This kind of arch name does *NOT* exist!)
461 AC_MSG_RESULT($with_arch)
463 # Decide features one by one.
464 AC_MSG_CHECKING(for default configuration of --enable-dx-regs)
465 if test "x${enable_dx_regs}" = xyes; then
466 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 1,
467 [Define value for nds32_dx_regs])
469 AC_DEFINE(NDS32_DEFAULT_DX_REGS, 0,
470 [Define default value for nds32_dx_regs])
472 AC_MSG_RESULT($enable_dx_regs)
474 AC_MSG_CHECKING(for default configuration of --enable-perf-ext)
475 if test "x${enable_perf_ext}" = xno; then
476 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 0,
477 [Define value for nds32_perf_ext])
479 AC_DEFINE(NDS32_DEFAULT_PERF_EXT, 1,
480 [Define default value for nds32_perf_ext])
482 AC_MSG_RESULT($enable_perf_ext)
484 AC_MSG_CHECKING(for default configuration of --enable-perf-ext2)
485 if test "x${enable_perf_ext2}" = xno; then
486 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 0,
487 [Define value for nds32_perf_ext2])
489 AC_DEFINE(NDS32_DEFAULT_PERF_EXT2, 1,
490 [Define default value for nds32_perf_ext2])
492 AC_MSG_RESULT($enable_perf_ext2)
494 AC_MSG_CHECKING(for default configuration of --enable-string-ext)
495 if test "x${enable_string_ext}" = xno; then
496 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 0,
497 [Define value for nds32_string_ext])
499 AC_DEFINE(NDS32_DEFAULT_STRING_EXT, 1,
500 [Define default value for nds32_string_ext])
502 AC_MSG_RESULT($enable_string_ext)
504 AC_MSG_CHECKING(for default configuration of --enable-audio-ext)
505 if test "x${enable_audio_ext}" = xno; then
506 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 0,
507 [Define value for nds32_audio_ext])
509 AC_DEFINE(NDS32_DEFAULT_AUDIO_EXT, 1,
510 [Define default value for nds32_audio_ext])
512 AC_MSG_RESULT($enable_audio_ext)
515 aarch64 | i386 | riscv | s390 | sparc)
516 if test $this_target = $target ; then
517 AC_DEFINE_UNQUOTED(DEFAULT_ARCH, "${arch}", [Default architecture.])
522 echo ${extra_objects} | grep -s "rl78-parse.o"
523 if test $? -ne 0 ; then
524 extra_objects="$extra_objects rl78-parse.o"
529 echo ${extra_objects} | grep -s "rx-parse.o"
530 if test $? -ne 0 ; then
531 extra_objects="$extra_objects rx-parse.o"
544 echo ${extra_objects} | grep -s "xtensa-relax.o"
545 if test $? -ne 0 ; then
546 extra_objects="$extra_objects xtensa-relax.o"
554 if test $using_cgen = yes ; then
555 case "x${extra_objects}" in
557 *) extra_objects="$extra_objects cgen.o" ;;
561 # See if we really can support this configuration with the emulation code.
563 if test $this_target = $target ; then
569 vms) extra_objects="$extra_objects te-vms.o" ;;
572 # From target name and format, produce a list of supported emulations.
574 case ${generic_target}-${fmt} in
575 mips-*-*-*) case "$endian" in
576 big) emulation="mipsbelf mipslelf mipself" ;;
577 *) emulation="mipslelf mipsbelf mipself" ;;
579 # i386-pc-pe-coff != i386-pc-coff.
581 # Uncommenting the next line will turn on support for i386 AOUT
582 # for the default linux configuration
583 # i386-*-linux*-elf) emulation="i386elf i386aout" ;;
585 i386-*-aout) emulation="i386aout" ;;
586 i386-*-coff) emulation="i386coff" ;;
587 i386-*-elf) emulation="i386elf" ;;
589 # Always all formats. The first stated emulation becomes the default.
590 cris-*-*aout*) emulation="crisaout criself" ;;
591 cris-*-*) emulation="criself crisaout" ;;
594 emulations="$emulations $emulation"
598 if test ${ac_default_x86_relax_relocations} = unset; then
599 ac_default_x86_relax_relocations=1
601 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_X86_RELAX_RELOCATIONS,
602 $ac_default_x86_relax_relocations,
603 [Define to 1 if you want to generate x86 relax relocations by default.])
605 if test ${ac_default_elf_stt_common} = unset; then
606 ac_default_elf_stt_common=0
608 AC_DEFINE_UNQUOTED(DEFAULT_GENERATE_ELF_STT_COMMON,
609 $ac_default_elf_stt_common,
610 [Define to 1 if you want to generate ELF common symbols with the
611 STT_COMMON type by default.])
613 if test x$ac_default_compressed_debug_sections = xyes ; then
614 AC_DEFINE(DEFAULT_FLAG_COMPRESS_DEBUG, 1, [Define if you want compressed debug sections by default.])
617 # Turn on all targets if possible
618 if test ${all_targets} = "yes"; then
619 case ${target_cpu_type} in
621 case ${obj_format} in
623 emulations="$emulations i386coff i386elf"
626 emulations="$emulations i386aout i386elf"
629 emulations="$emulations i386aout i386coff"
634 case ${obj_format} in
636 emulations="$emulations i386coff i386elf"
639 emulations="$emulations i386aout i386elf"
642 emulations="$emulations i386aout i386coff"
649 # PE code has way too many macros tweaking behaviour
651 pe*) emulations="" ;;
654 # Assign floating point type. Most processors with FP support
655 # IEEE FP. On those that don't support FP at all, usually IEEE
657 case ${target_cpu} in
658 vax | pdp11 ) atof=vax ;;
662 case "${obj_format}" in
663 "") AC_MSG_ERROR(GAS does not know what format to use for target ${target}) ;;
666 # Unfortunately the cpu in cpu-opc.h file isn't always $(TARGET_CPU).
668 if test $using_cgen = yes ; then
669 case ${target_cpu} in
671 cgen_cpu_prefix=or1k ;;
672 *) cgen_cpu_prefix=${target_cpu} ;;
674 AC_SUBST(cgen_cpu_prefix)
675 AC_DEFINE(USING_CGEN, 1, [Using cgen code?])
679 dnl Make sure the desired support files exist.
682 if test ! -r ${srcdir}/config/tc-${target_cpu_type}.c; then
683 AC_MSG_ERROR(GAS does not support target CPU ${target_cpu_type})
686 if test ! -r ${srcdir}/config/obj-${obj_format}.c; then
687 AC_MSG_ERROR(GAS does not have support for object file format ${obj_format})
690 # Some COFF configurations want these random other flags set.
691 case ${obj_format} in
693 case ${target_cpu_type} in
694 i386) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
695 m68k) AC_DEFINE(M68KCOFF, 1, [Using m68k COFF?]) ;;
696 m88k) AC_DEFINE(M88KCOFF, 1, [Using m88k COFF?]) ;;
697 x86_64) AC_DEFINE(I386COFF, 1, [Using i386 COFF?]) ;;
702 # Getting this done right is going to be a bitch. Each configuration specified
703 # with --enable-targets=... should be checked for environment, format, cpu
706 # For each configuration, the necessary object file support code must be linked
707 # in. This might be only one, it might be up to four. The necessary emulation
708 # code needs to be provided, too.
710 # And then there's "--enable-targets=all"....
712 # For now, just always do it for MIPS ELF configurations. Sigh.
714 formats="${obj_format}"
718 for em in . $emulations ; do
721 mipsbelf | mipslelf | mipself)
722 fmt=elf file=mipself ;;
730 formats="$formats $fmt"
731 emfiles="$emfiles e-$file.o"
732 EMULATIONS="$EMULATIONS &$em,"
736 if test `set . $formats ; shift ; echo $#` -gt 1 ; then
737 for fmt in $formats ; do
739 aout) AC_DEFINE(OBJ_MAYBE_AOUT, 1, [a.out support?]) ;;
740 bout) AC_DEFINE(OBJ_MAYBE_BOUT, 1, [b.out support?]) ;;
741 coff) AC_DEFINE(OBJ_MAYBE_COFF, 1, [COFF support?]) ;;
742 ecoff) AC_DEFINE(OBJ_MAYBE_ECOFF, 1, [ECOFF support?]) ;;
743 elf) AC_DEFINE(OBJ_MAYBE_ELF, 1, [ELF support?]) ;;
744 generic) AC_DEFINE(OBJ_MAYBE_GENERIC, 1, [generic support?]) ;;
745 som) AC_DEFINE(OBJ_MAYBE_SOM, 1, [SOM support?]) ;;
747 extra_objects="$extra_objects obj-$fmt.o"
751 if test `set . $emfiles ; shift ; echo $#` -gt 0 ; then
752 DEFAULT_EMULATION=`set . $emulations ; echo $2`
753 # e-mipself has more than one emulation per file, e-i386* has just one at the
754 # moment. If only one emulation is specified, then don't define
755 # USE_EMULATIONS or include any of the e-files as they will only be bloat.
756 case "${obj_format}${emfiles}" in
758 extra_objects="$extra_objects $emfiles"
759 AC_DEFINE(USE_EMULATIONS, 1, [Use emulation support?]) ;;
762 AC_SUBST(extra_objects)
763 AC_DEFINE_UNQUOTED(EMULATIONS, $EMULATIONS, [Supported emulations.])
764 AC_DEFINE_UNQUOTED(DEFAULT_EMULATION, "$DEFAULT_EMULATION",
765 [Default emulation.])
767 reject_dev_configs=yes
769 case ${reject_dev_configs}-${dev} in
771 AC_MSG_ERROR(GAS does not support the ${generic_target} configuration.)
775 AC_SUBST(target_cpu_type)
778 AC_SUBST(install_tooldir)
780 dnl AC_SUBST(emulation)
782 # do we need the opcodes library?
783 case "${need_opcodes}" in
785 OPCODES_LIB=../opcodes/libopcodes.la
789 AC_SUBST(OPCODES_LIB)
791 AC_DEFINE_UNQUOTED(TARGET_ALIAS, "${target_alias}", [Target alias.])
792 AC_DEFINE_UNQUOTED(TARGET_CANONICAL, "${target}", [Canonical target.])
793 AC_DEFINE_UNQUOTED(TARGET_CPU, "${target_cpu}", [Target CPU.])
794 AC_DEFINE_UNQUOTED(TARGET_VENDOR, "${target_vendor}", [Target vendor.])
795 AC_DEFINE_UNQUOTED(TARGET_OS, "${target_os}", [Target OS.])
800 ALL_LINGUAS="fr tr es rw id ru fi ja zh_CN sv"
801 ZW_GNU_GETTEXT_SISTER_DIR
805 AM_CONDITIONAL(GENINSRC_NEVER, false)
808 AC_CHECK_HEADERS(string.h stdlib.h memory.h strings.h unistd.h errno.h sys/types.h limits.h locale.h time.h sys/stat.h)
811 # Put this here so that autoconf's "cross-compiling" message doesn't confuse
812 # people who are not cross-compiling but are compiling cross-assemblers.
813 AC_MSG_CHECKING(whether compiling a cross-assembler)
814 if test "${host}" = "${target}"; then
818 AC_DEFINE(CROSS_COMPILE, 1, [Compiling cross-assembler?])
820 AC_MSG_RESULT($cross_gas)
822 dnl ansidecl.h will deal with const
827 # VMS doesn't have unlink.
828 AC_CHECK_FUNCS(unlink remove, break)
829 AC_CHECK_FUNCS(sbrk setlocale)
830 AC_CHECK_FUNCS(strsignal)
834 # do we need the math library?
835 case "${need_libm}" in
842 # Some non-ANSI preprocessors botch requoting inside strings. That's bad
843 # enough, but on some of those systems, the assert macro relies on requoting
847 # On some systems, the system header files may not declare malloc, realloc,
848 # and free. There are places where gas needs these functions to have been
849 # declared -- such as when taking their addresses.
857 #ifdef HAVE_STRINGS_H
869 # Does errno.h declare errno, or do we have to add a separate declaration
871 GAS_CHECK_DECL_NEEDED(errno, f, int f, [
877 AC_MSG_CHECKING(for a known getopt prototype in unistd.h)
878 AC_CACHE_VAL(gas_cv_decl_getopt_unistd_h,
879 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], [extern int getopt (int, char *const*, const char *);])],
880 gas_cv_decl_getopt_unistd_h=yes, gas_cv_decl_getopt_unistd_h=no)])
881 AC_MSG_RESULT($gas_cv_decl_getopt_unistd_h)
882 if test $gas_cv_decl_getopt_unistd_h = yes; then
883 AC_DEFINE([HAVE_DECL_GETOPT], 1,
884 [Is the prototype for getopt in <unistd.h> in the expected format?])
887 GAS_CHECK_DECL_NEEDED(environ, f, char **f, $gas_test_headers)
888 GAS_CHECK_DECL_NEEDED(ffs, f, int (*f)(int), $gas_test_headers)
889 GAS_CHECK_DECL_NEEDED(free, f, void (*f)(), $gas_test_headers)
890 GAS_CHECK_DECL_NEEDED(malloc, f, char *(*f)(), $gas_test_headers)
891 GAS_CHECK_DECL_NEEDED(sbrk, f, char *(*f)(), $gas_test_headers)
892 GAS_CHECK_DECL_NEEDED(strstr, f, char *(*f)(), $gas_test_headers)
894 AC_CHECK_DECLS([free, getenv, malloc, mempcpy, realloc, stpcpy, strstr, vsnprintf, asprintf])
898 # Link in zlib if we can. This allows us to write compressed debug sections.
901 # Support for VMS timestamps via cross compile
903 if test "$ac_cv_header_time_h" = yes; then
904 GAS_HAVE_TIME_TYPE_MEMBER(struct tm, tm_gmtoff)
907 if test "$ac_cv_header_sys_stat_h" = yes; then
908 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_sec)
909 GAS_HAVE_SYS_STAT_TYPE_MEMBER(struct stat, st_mtim, tv_nsec)
913 dnl Required for html, pdf, install-pdf and install-html targets.
914 AC_SUBST(datarootdir)
919 dnl This must come last.
921 dnl We used to make symlinks to files in the source directory, but now
922 dnl we just use the right name for .c files, and create .h files in
923 dnl the build directory which include the right .h file. Make sure
924 dnl the old symlinks don't exist, so that a reconfigure in an existing
925 dnl directory behaves reasonably.
927 AC_CONFIG_FILES(Makefile doc/Makefile po/Makefile.in:po/Make-in)
928 AC_CONFIG_COMMANDS([default],
929 [rm -f targ-cpu.c targ-cpu.h obj-format.h obj-format.c targ-env.h atof-targ.c itbl-cpu.h
930 echo '#include "tc-'"${target_cpu_type}"'.h"' > targ-cpu.h
931 echo '#include "obj-'"${obj_format}"'.h"' > obj-format.h
932 echo '#include "te-'"${te_file}"'.h"' > targ-env.h
933 echo '#include "itbl-'"${target_cpu_type}"'.h"' > itbl-cpu.h
934 if test "x$cgen_cpu_prefix" != x ; then
935 echo '#include "opcodes/'"${cgen_cpu_prefix}"'-desc.h"' > cgen-desc.h
937 [target_cpu_type=${target_cpu_type}
938 cgen_cpu_prefix=${cgen_cpu_prefix}
939 obj_format=${obj_format}